Cross tie for railways



June 14, 1938. w. E. DAVIS 2,120,887

cnoss TIE FOR RAILWAYS Filed Oct. 15, 1957 INVENTOR,

ATTORNEY,

gi atented June 14, 1938 UNITED STATES PATENT OFFICE CROSS TIE FOR RAILWAYS I William E. Davis, Chattaroy, W. Va. Application October 15, 1937, Serial No. 169,291

1 Claim.

This invention relates to cross ties for railways, and the purpose of the invention is to'increase the anchorage of steel cross ties to minimize their slipping endwise, as steel ties become dislodged more easily than wooden ties because of their lower. coeflicient of friction.

In transporting coal in mines, sidewise swayingof the car, due to faulty alinement of the rails, causes the coal that is heaped on the mine car to roll off the sides, littering the haulway and causing dust to accumulate. It also results in wrecks from derailment and retards the speed of the car and increases the power consumed.

The use of steel ties in mines enables the build-- 5 ing of the railway with the tops of the rails as low as possible in order that the capacity of the car maybe utilized to a maximum degree when operating in low seams of coal. The present invention, therefore, is designed to and claimed.

In describing the invention in detail, reference will be had to the accompanying drawing forming part of this application, wherein like characters denote corresponding parts in the several views and in which a V Figure 1 illustrates a perspective view of a fragment of a track with cross ties embodying the invention;

Figure 2 illustrates a sectional view on the line 2-2 of Fig. 1; and 1 Figure 3 illustrates a perspective view of a fragment of a cross tie embodying a modification.

In the drawing 5 denotes fragments of rails which, of course, form no'part of the present invention, but are shown assembled with the cross ties and conventional rail fastening means 6. The cross ties I each comprises a rail supporting base with flanges 8 and 9 at the longitudinal edges thereof, and the said flanges may be at right angles to the base or. theymay extend slightly outwardly, as shown in Figs. land 2. Each flange isprovided with a'plurality of sereffectually anchor the steel cross ties, regardless rations or tooth-like projections H) with spaces between them, in order that the projections may imbed themselves, to a-greater or lesser degree or extent, in a roadbed and, in fact, generally the serrated flanges will penetrate the roadbed to an extent that the under surfaces of the base will lie on the surface of the roadbed, and it is obvious that when such anchorage is attained, the ties will retain their positions to a degree that the rails will not move transversely of a mine tunnel. 10

As has been stated, it is desirable in the use of rails for mine cars to operate the cars with asmuch clearance for the load as possible, for, as is well known, when the clearance is reduced, the size of the lumps of coal must be such as to 15 pass between the top of the mine car and the roof of the tunnel and if the lumps are large, a more economical mining operation and better sale price results.

In the modification shown in Fig. 3, the base I I has flanges such as l2 and the teeth I3 01 this modified construction are produced by curved or approximately semi-circular recesses, so that the distance between the teeth is increased as compared with the spaces between the teeth III. The result is that there is a larger deposit of material forming the roadbed between the teeth I3 and, under some conditions, the cross tie will be held to better advantage than where the spaces between the teeth are in the shape of an inverted V.

It is to be understood that the inventor. does not wish to be limited with respect to the particular means of forming the anchoring teeth so I 'long as they are comprehended within the terms of the annexed claim. The teeth, of course, may be formed by notching, scalloping or pinking the edges of the flanges, and preferably the cross tie is formed by the well known rolling mill practices whereby steel is rolled to produce the cross tie with its depending flanges, the bottom edges of 40 said flanges having the aforesaid anchoring means.

I claim: 7 I I A metal cross tie consisting of a metal plate shaped to form a rail supporting base and inte- 45 gral depending relatively low flanges whereby the rails are supported thereby in close proximity to r a roadbed, the edges .of said integral flanges having V-shaped projecting teeth tapered to produce sharp points and adapted to be imbedded or partially imbedded in the roadbed.

WILLIAM E. DAVIS. 

